ASTROSAT CZTI

Data Quality Report

Orbit 32233

Creation date: 2024-06-27T20:37:52.355995
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_057T01_9000004692_32233cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32233cztM0_level2_quad_clean.evt
Size (bytes)578,223,36070,012,800
Size551.4 MB 66.8 MB
Events in quadrant A3,230,821423,673
Events in quadrant B5,655,186416,955
Events in quadrant C3,622,949420,596
Events in quadrant D4,568,720410,981

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138452
B0214232
C0150582
D0179342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6409260.405680%
B64102193.416537%
C64101822.839314%
D64101101.716069%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7534 6410 0 0 0.00% 0.00%
B 7535 6411 59 59 0.78% 0.92%
C 7535 6411 26 26 0.35% 0.41%
D 7535 6411 33 33 0.44% 0.51%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 6 12465 69.43 833 817 167.8
A 13 254 12293 68.41 833 817 167.8
A 3 137 7787 41.55 833 817 167.8
B 6 159 1915801 12473.71 821 800 153.5
B 5 172 228282 1481.75 821 800 153.5
B 4 80 184111 1194.03 821 800 153.5
C 14 238 140430 740.78 808 815 188.5
C 15 208 120371 634.35 808 815 188.5
C 0 10 68792 360.68 808 815 188.5
D 8 195 1112847 5786.3 813 794 192.2
D 2 250 219935 1140.25 813 794 192.2
D 13 249 91285 470.85 813 794 192.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter